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Did you know?
Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Your heart beats over 36 million times a year.
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Illicit drug use costs the United States approximately $181 billion every year.
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Blood is approximately twice as thick as water because of the cells and other components found in it.